2010 Chevrolet Silverado 1500 Regular Cab Owner's Manual - Page 179

Electronic Transfer Case The transfer case knob is located next to the steering column. You can choose among four driving settings: Indicator lights in the dial show which setting you are in. The indicator lights will come on briefly when you turn on the ignition and one will stay on. If the lights do not come on, you should take the vehicle to your dealer for service. An indicator light flashes while shifting the transfer case and remains illuminated when the shift is complete. If for some reason the transfer case cannot make a requested shift, it will return to the last chosen setting. 2 m (Two-Wheel-Drive High): This setting is used for driving in most street and highway situations. The front axle is not engaged in Two-Wheel Drive. This setting also provides the best fuel economy. Use the dial to shift into and out of four-wheel drive. Recommended Transfer Case Settings Transfer Case Settings 2m 4m 4n N Normal YES Severe YES Extreme YES Vehicle in Tow* YES *See Recreational Vehicle Towing on page 5‑44 or Towing Your Vehicle on page 5‑44 Driving Conditions 3-41